\begin{thebibliography}{99}
    \bibitem{1}{\em Manual XHTML} \hfill http://manual-xhtml.blogspot.com/
    \bibitem{2}{\em Tutorial CSS} \hfill
http://www.programacion.com/tutorial/csspractico/
    \bibitem{3}{\em SQLObject} \hfill http://www.sqlobject.org/
    \bibitem{4}{\em ImageMagick} \hfill http://www.imagemagick.org/
    \bibitem{5}{\em WebFaction} \hfill http://www.webfaction.com/
    \bibitem{6}{\em Nexcess} \hfill http://www.nexcess.net/
    \bibitem{7}{\em LaTeX} \hfill
http://www.fceia.unr.edu.ar/lcc/cdrom/Instalaciones/LaTex/latex.html/
    \bibitem{8}{\em Framework} \hfill http://es.wikipedia.org/wiki/Framework/
    \bibitem{9}{\em Modelo-Vista-Contolador} \hfill
http://es.wikipedia.org/wiki/MVC/
    \bibitem{10}{\em MySQL} \hfill http://www.mysql.com/
    \bibitem{11}{\em SQLite} \hfill http://www.sqlite.org/
    \bibitem{12}{\em XHTML} \hfill http://es.wikipedia.org/wiki/XHTML/
    \bibitem{13}{\em CSS} \hfill http://es.wikipedia.org/wiki/Css/
\end{thebibliography}